Q5 / 150 · MHT CET 2023 (13 May Shift 1) · Chemistry

Which from following properties is exhibited by group 2 elements?

  • A
    Act as inert elements in +1 state.
  • Correct answer
    B
    Form $\mathrm{MH}_2$ type hydrides with hydrogen on heating.
  • C
    Elements at the top in the group catch fire when kept on water.
  • D
    Reducing power of these elements is more than group I elements.

Solution

All the metals of group 2, except beryllium, when heated with hydrogen form $\mathrm{MH}_2$ type hydrides. Hence, statement (B) is correct. Elements of group 2 elements act as inert elements in +2 state. Elements at the top in the group 2 do not catch fire when kept on water. Reducing power of group 2 elements is less than group 1 elements. Hence, statements (A), (C) and (D) are incorrect.

Hence, the correct answer is option: 'B'.

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